Industrial grade connector with safety switch

[sysrq]

Your own documented risk assessment should also hi-light the requirement for one backed up by the relevent safety standards, without it meeting these standards the machine cannot be sold as a working model and only as a project for upgrade - something very dodgy is going on here if you have been sold this machine as a complete unit yet it basic safety features missing.

Let this case serve as a severe warning for anyone else. Sooner or later accident will happen.

This is not a commercial project.

 

[Darkwood]

Let this case serve as a severe warning for anyone else. Sooner or later accident will happen.

This is not a commercial project.

I'm sorry, I'm getting a tad confused here, your recent history shows a lot of similar questions so exactly where are these questions coming from, when asked you seem to supply relevent info as though these are active projects, if anyone is to use these machines and control systems then they have to meet all relevent regulation for safety standards and machine control guidelines regardless of where this machine is installed - your concerns on this thread are others pulling the motor plug while it is running - this suggests it is not a private garage project for your own use only.

 

[sysrq]

Label the socket [:smartass: ] accordingly that the VFD must be isolated before unplugging. You can't design to accommodate stupidity, stupidity will always win.

Is there anything in BS 7671 about safely disconnecting the motor from the VFD if there is connector in the load side? I don't know if Toshiba vf-s11 is protected against it cause in the manual there isn't anything about it. Nowadays we have a fly-back diode across each transistor in the VFD as a protection against stupidity.
I guess if nobody makes EMC connectors (good 360 degree connection) with simple early break contacts for the VFD then it's not allowed to use them (few available only for high power VFD's). There are many who don't care about correct impedance mach or EMC compliance (VFD acts as a high power radio transmitter in wide spectral coverage) and put all sorts of switches in-between the motor and VFD.

It seems strange that there aren't any Harting type connectors with early brake pins or auxiliary switches either. We have only isolators with with an early break auxiliary conntacts.

 

[Darkwood]

Is there anything in BS 7671 about safely disconnecting the motor from the VFD if there is connector in the load side? I don't know if Toshiba vf-s11 is protected against it cause in the manual there isn't anything about it. Nowadays we have a fly-back diode across each transistor in the VFD as a protection against stupidity.
I guess if nobody makes EMC connectors (good 360 degree connection) with simple early break contacts for the VFD then it's not allowed to use them (few available only for high power VFD's). There are many who don't care about correct impedance mach or EMC compliance (VFD acts as a high power radio transmitter in wide spectral coverage) and put all sorts of switches in-between the motor and VFD.

It seems strange that there aren't any Harting type connectors with early brake pins or auxiliary switches either. We have only isolators with with an early break auxiliary conntacts.

Why are you asking about the BS7671 - this is outside the scope of the BS7671, if you had the appropriate guidelines/standards which are based on the European L.V.D. then you would be aware of this, can you clarify exactly what standards you are following when doing this work?...

 

[Barry White]

Use a harting conector and see post 2
Are you building this machine? or modifying it if so be careful as you the designer/installer will be liable

 

[sysrq]

I had no other choice but to attach a magnet to a locking lever of a Harting/Epic male socket and a magnetic switch on a female plug with a control wire in a separate conduit.
As soon as you try to open it motor stops and there is enough time until it's safe to unplug it.
Only thing is it might look like a handyman job for some.